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No torsion spring system, so that the door body in the operationof the door due to the weight of the wire rope will not be loose,thus ensuring that the wire rope is not easy to scatter, reduceafter-sales and greatly improve the use of the door body safety.Increase the motor brake system level fall arrester, double protec-tion to enhance the safety of the door body use.
No torsion spring system, so that the door body in the operationof the door due to the weight of the wire rope will not be loose,thus ensuring that the wire rope is not easy to scatter, reduceafter-sales and greatly improve the use of the door body safety.Increase the motor brake system level fall arrester, double protec-tion to enhance the safety of the door body use.